Work

Hydrothermally synthesized highly stable binary manganese magnesium sulfide (MnMgS) composite with carbon nanotubes for high-performance supercapattery applications

Year: 2024

Type: article

Abstract: The device which combines the outcomes supercapacitor (SC) and battery is known as supercapattery. Due to their high conductivity, sensitivity, and storage capacity, carbon nanotubes have drawn attention in energy storage (EES) applications. To achieve highperformance supercapattery, this study used an electrode based on carbon nanotubes (CNTs) and manganese magnesium sulfide (MnMgS). It showed 963 C/g specific capacity which is significantly greater than the reference sample's value of 1 A/g. The supercapattery is engineered using the CNT-doped MnMgS electrode (MnMgS/CNT//AC), which has a specific capacity (Cs) of 268 Cg-1 at 1 Ag-1 current density. A significantly higher power and energy densities of 2230 WKg-1 and 35.6 Wh/Kg than the previously published graphs is proposed. Moreover, electrochemical impedance spectroscopy (EIS) and BrunauerEmmett-Teller (BET) tests and verify an increase in surface area and conductivity. The device goes through 5000 GCD cycles as part of a reliability test to investigate stability, and it is found that 95% of the claimed capacity is maintained. Our research offers a great foundation for creating high-performing energy storage devices similar to supercapattery.

Source: Chalcogenide Letters

DOI: 10.15251/cl.2024.2112.965

Authors: M. A. Sadi, A. Mahmood, W. Al-Masry, C. W. Dunnill, N. Mahmood

Institutions: Muhammad Nawaz Sharif University of Engineering & Technology, King Saud University, Swansea University, Energy Safety Research Institute, University of Lahore

Language: English

Topic: Supercapacitor Materials and Fabrication

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: bronze

Funder: King Saud University